How do you quickly close a nonresponsive websocket in Java Spring Tomcat?

Question

I have a real-time application with clients using websockets to connect with a Spring Framework server, which is running Spring Boot Tomcat. I want the server to quickly (wi

Answer 1

The approach I eventually took was to implement an application-layer ping-pong protocol.

• The server sends a ping message with period p to the client.
• The client responds to each ping message with a pong message.
• If the server sends more than n ping messages without receiving a pong response, it generates a timeout event.
• The client can also generate a timeout event if it does not receive a ping message in n*p time.

There should be a much simpler way of implementing this using timeouts in the underlying TCP connection.